Convert your 100-point percentage grade or letter grade to a standard 4.0 Unweighted GPA. Need to average out multiple classes? Use our interactive GPA calculator to map your full transcript.
Unweighted GPA conversion: 100-point percentage, letter grade, and national percentile
Unweighted GPA
100-Point Scale
Letter Grade
National Percentile
4.0Perfect Unweighted
97 - 100
A / A+
99th Percentile
3.9
94 - 96
A
96th Percentile
3.8
90 - 93
A-
90th Percentile
3.7
87 - 89
A-
85th Percentile
3.6
84 - 86
B+
80th Percentile
3.5Strong College Applicant
80 - 83
B+
75th Percentile
3.4
77 - 79
B
68th Percentile
3.3
74 - 76
B
62nd Percentile
3.2
71 - 73
B
57th Percentile
3.1
68 - 70
B-
53rd Percentile
3.0National Average
65 - 67
B-
50th Percentile
2.9
62 - 64
C+
46th Percentile
2.8
59 - 61
C+
42nd Percentile
2.7
56 - 58
C
38th Percentile
2.6
53 - 55
C
34th Percentile
2.5
50 - 52
C
30th Percentile
2.4
47 - 49
C-
26th Percentile
2.3
44 - 46
C-
22nd Percentile
2.2
41 - 43
D+
18th Percentile
2.1
38 - 40
D+
15th Percentile
2.0Minimum Grad Requirement
35 - 37
D
12th Percentile
1.5
25 - 34
D-
5th Percentile
1.0
0 - 24
F
1st Percentile
How to Use the GPA Conversion Chart
Converting your grades to the standard 4.0 GPA scale is the easiest way to see where you stand for college admissions. Most universities and scholarship programs evaluate applicants based on an unweighted 4.0 system to ensure a level playing field.
Converting from a 100-Point Percentage Scale
If your high school awards grades as percentages (e.g., an 88% in Biology), simply find your percentage range in the chart above to see the corresponding GPA. For example, an 88% translates to a 3.7 GPA and an A- letter grade.
Unweighted vs. Weighted Scale
This conversion chart uses the standard Unweighted 4.0 Scale, meaning every class is graded equally. If you are taking Honors, AP, or IB courses, your school might use a Weighted Scale (often out of 5.0). In a weighted system, a "B" in an AP class might be worth a 4.0 instead of a 3.0. Always check your school's specific weighting policy for advanced classes. Once you know how each class converts, you can plug every course into our GPA calculator to get your full weighted or unweighted cumulative average.
Data Note:
The conversion ranges and percentile data presented in this table are aggregate approximations based on standard U.S. grading systems and historical transcript data. Grading standards can vary slightly by school district.
Frequently Asked Questions
What percentage is a perfect 4.0 GPA?
A 97-100 percentage range corresponds to a 4.0 unweighted GPA, equivalent to an A or A+ letter grade.
Is a 90 average a 4.0 GPA?
No. A 90-93 percentage average converts to a 3.8 unweighted GPA and an A- letter grade, slightly below a perfect 4.0.
What is a 3.5 GPA in percentage?
A 3.5 GPA corresponds to a percentage range of roughly 80-83 and a B+ letter grade on the standard unweighted scale.
What is an 85 percent GPA?
An 85 percent falls in the 84-86 range, which converts to a 3.6 unweighted GPA and a B+ letter grade.
